.unique-chat-app {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
  }
  
  .main-content {
    display: flex;
    height: calc(100vh - 60px); /* 假设Header的高度为60px */
  }
  
  .unique-chat-history-container {
    flex: 0 0 300px;
    border-right: 1px solid #e0e0e0;
  }
  
  .unique-chat-content-container {
    flex: 1;
    overflow-y: auto;
    background-color: #f3f5f8;
  }
  